Moonfall Impact Simulator

Welcome to Moonfall — The Ultimate Planetary Impact Experience

Have you ever wondered what would happen if the Moon collided with Earth? Moonfall transforms this fascinating hypothetical scenario into an interactive, scientifically-inspired 3D simulation that runs directly in your web browser. Using cutting-edge WebGL technology, real NASA planetary textures, and live environmental data, Moonfall creates an experience that is both breathtakingly visual and educationally valuable.

Our simulation lets you take control of a cosmic catastrophe. Simply click anywhere on the photorealistic 3D Earth globe or search for any city in the world to set your target. A precise red crosshair marks the exact impact point. When you press the launch button, a dramatic 60-second countdown begins. During this time, the Moon detaches from its orbit and accelerates toward your chosen location with cinematic precision.

What makes Moonfall truly unique is its integration of real-time data. As the Moon approaches, the simulation fetches live weather conditions for your target location — temperature, wind speed, humidity, atmospheric pressure, and air quality index. These values then dynamically update throughout the destruction sequence, showing how environmental conditions would catastrophically deteriorate during a real impact event. Temperatures soar from 20°C to over 2,000°C, wind speeds reach supersonic levels, and air quality plummets to hazardous extremes.

The destruction unfolds across four scientifically-informed phases: Tidal Chaos, Atmospheric Ignition, Crust Fracture, and Final Approach. Each phase brings new visual effects — glowing red fracture lines spider across Earth's surface, hundreds of asteroid fragments bombard the impact zone, and the atmosphere shifts from cool blue to an intense, fire-like red. The final impact is a cinematic spectacle: Earth and Moon shatter into over 10,000 glowing debris particles that expand outward in a spectacular ring formation.

Built entirely with open-source technologies including Three.js, OpenStreetMap, and Open-Meteo, Moonfall requires no downloads or plugins. It runs smoothly on any modern browser and is hosted on Cloudflare's global network for fast loading worldwide. Whether you are a student exploring planetary science, a teacher looking for an engaging classroom tool, or simply someone fascinated by space, Moonfall offers an unforgettable journey into the destructive power of cosmic collisions.